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UPDATE 2: No Tsunami Expected From 4.2-M Kīlauea Rift Zone Quake

April 27, 2019, 5:36 PM HST
* Updated April 27, 8:18 PM
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UPDATE 2: Magnitude-4.2 earthquake SE of Volcano, Hawaiʻi

The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.2 earthquake on Saturday, April 27, 2019, at 5:26 p.m. HST.

The earthquake was located about 12 miles SE of Volcano on the Island of Hawaiʻi at a depth of approximately 4 miles.

This earthquake is part of the continuing adjustments beneath the south flank of Kīlauea following the magnitude-6.9 earthquake that occurred on May 4, 2018.

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Twenty seconds before the magnitude-4.2 earthquake, a magnitude-1.6 quake occurred deep beneath Kīlauea Volcano’s Southwest Rift Zone, causing some initial confusion about the larger earthquake’s location.

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More details about the magnitude-4.2 earthquake are available at the National Earthquake Information Center website.

Weak to light shaking, with a maximum Intensity of IV on the Mercalli Intensity Scale, has been reported primarily in East Hawaiʻi, with a few reports from West Hawaiʻi.

The USGS “Did you feel it?” service received over 100 felt reports within an hour of the magnitude-4.2 earthquake.

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The earthquakes have caused no detectable changes in activity at either Kīlauea or Mauna Loa volcanoes.

According to the Pacific Tsunami Warning Center (PTWC), no tsunami was generated by the earthquake.

For more information on recent earthquakes in Hawai‘i and eruption updates, visit the Hawaiian Volcano Observatory website.

UPDATE: 5:45 PM, Saturday, April 27: Civil Defense

The Pacific Tsunami Warning Center reports a 4.1 magnitude earthquake occurred at 5:26 PM on the SW Rift zone of Kīlauea.

There is NO TSUNAMI THREAT to the Island of Hawai‘i.

Hawai‘i Volcano Observatory indicates that no volcanic activity has been related to this earthquake.

ORIGINAL: 528 PM HST SAT APR 27 2019: NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0526 PM HST 27 APR 2019
COORDINATES – 19.3 NORTH 155.4 WEST
LOCATION – IN THE SOUTHWEST RIFT ZONE OF KILAUEA VOLCANO
MAGNITUDE – 4.1

NO TSUNAMI IS EXPECTED. HOWEVER, SOME AREAS MAY HAVE EXPERIENCED SHAKING.

A 3.9 magnitude quake occurred seconds earlier 14km NE of Pahala.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS ADDITIONAL DATA ARE RECEIVED.

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